fix:api_key设置为从环境变量获取

config.example.py

@@ -1,23 +1,74 @@
 """
-Configuration file for Vector Engine API
+Configuration Example for Vector Engine API
 
-To use:
-1. Copy this file to config.py
-2. Update with your actual API key
-3. Import in vector_engine_node.py
+This file shows how to configure the Vector Engine API key.
+The actual API key should be set via environment variable for security.
+
+DO NOT hardcode API keys in your code!
 """
 
-# Vector Engine API Configuration
-VECTOR_ENGINE_API_KEY = "sk-your-api-key-here"
+# ==========================================
+# API Key Configuration (RECOMMENDED METHOD)
+# ==========================================
 
-# API Endpoint
+# Set the environment variable before starting ComfyUI:
+#
+# Linux/macOS:
+#   export VECTOR_ENGINE_API_KEY="sk-your-api-key-here"
+#   python main.py
+#
+# Windows (CMD):
+#   set VECTOR_ENGINE_API_KEY=sk-your-api-key-here
+#   python main.py
+#
+# Windows (PowerShell):
+#   $env:VECTOR_ENGINE_API_KEY="sk-your-api-key-here"
+#   python main.py
+
+# ==========================================
+# Permanent Configuration
+# ==========================================
+
+# Linux/macOS - Add to ~/.bashrc or ~/.zshrc:
+#   export VECTOR_ENGINE_API_KEY="sk-your-api-key-here"
+#
+# Windows - Use setx for permanent environment variable:
+#   setx VECTOR_ENGINE_API_KEY "sk-your-api-key-here"
+
+# ==========================================
+# Docker Configuration
+# ==========================================
+
+# In docker-compose.yml:
+#   environment:
+#     - VECTOR_ENGINE_API_KEY=sk-your-api-key-here
+#
+# Or with docker run:
+#   docker run -e VECTOR_ENGINE_API_KEY="sk-your-api-key-here" ...
+
+# ==========================================
+# API Configuration
+# ==========================================
+
+# API Endpoint (configured in the node, no need to change)
 VECTOR_ENGINE_API_HOST = "api.vectorengine.ai"
 
-# Default Model
+# Default Model (configured in the node)
 DEFAULT_MODEL = "gemini-3-pro-image-preview"
 
-# Default Generation Config
+# Default Generation Settings
 DEFAULT_SYSTEM_PROMPT = "You are an AI assistant skilled in generating images and editing pictures."
 DEFAULT_ASPECT_RATIO = "1:1"
 DEFAULT_IMAGE_SIZE = "1K"
 
+# ==========================================
+# Security Notes
+# ==========================================
+
+# ✓ DO: Use environment variables for API keys
+# ✓ DO: Add sensitive files to .gitignore
+# ✓ DO: Use secrets management in production
+
+# ✗ DON'T: Hardcode API keys in code
+# ✗ DON'T: Commit API keys to version control
+# ✗ DON'T: Share API keys in public repositories